时间:2019-01-08 作者:英语课 分类:Scientific American(八)月


英语课

That’s what it might sound like if I had a tongue stud, hitting my teeth. Maybe you’ve seen people with studs in their tongue clicking it up against their front teeth, a move known as “playing.” But it turns out that the habit may destroy some smiles.


University of Buffalo 1 researchers noticed that local high school students who had a barbell-type tongue stud commonly pushed the piercings against their front teeth. Then they examined a 26-year-old patient at the school’s dental clinic. She’d had been complaining about a large gap that had developed between her front two teeth. Seven years previously 2, she got a tongue stud. And every day, for seven years, she pushed that stud up against her teeth.


The researchers say tongues are strong, and it makes sense that the force of “playing” will move teeth, even forcing them apart. The case was written up in the Journal of Clinical Orthodontics.


Tongue piercings have also been associated with infections, chipped or broken teeth, and gum trauma 3. And the patient? She got braces 4 to push her teeth back together. Which probably didn’t look quite as cool as she thought the tongue stud was.


Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.

 



n.(北美)野牛;(亚洲)水牛
  • Asian buffalo isn't as wild as that of America's. 亚洲水牛比美洲水牛温顺些。
  • The boots are made of buffalo hide. 这双靴子是由水牛皮制成的。
adv.以前,先前(地)
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
n.外伤,精神创伤
  • Counselling is helping him work through this trauma.心理辅导正帮助他面对痛苦。
  • The phobia may have its root in a childhood trauma.恐惧症可能源于童年时期的创伤。
n.吊带,背带;托架( brace的名词复数 );箍子;括弧;(儿童)牙箍v.支住( brace的第三人称单数 );撑牢;使自己站稳;振作起来
  • The table is shaky because the braces are loose. 这张桌子摇摇晃晃,因为支架全松了。
  • You don't need braces if you're wearing a belt! 要系腰带,就用不着吊带了。
学英语单词
a narrow shave
actinopraxis
aircraft-mounted mine detector
al-daour
albedometers
amphicreatine
aptitude for
arched false work
armed reconnaissance
asahikawas
asphalt flooring
ataerio of drupelets
averill
bachet
bangs-bangs-bangs
be on leave
biological decomposition
blood sucker
busca
cauliflory
central frequency
coastal navigational warnings
coiler pulpit
cold mirrors
continuous charging
convergent filtration
counting on
cupr
delay sweep
dorkish
drum-kits
economy of scope
elbel
electric fog horn
errorlevel
fall of snow
filiforme
fillmass chute
first of same tenor and bate being unpaid
graphic-mode display
Gynutoclinus
high frequency thin film thickness meter
high temperature ablative material
Highmore's body
hochstein
hot gas flame
intermediate products
Koebe function
laterobronchus
liquid-pressure scales
log arithmic diode
losings
Mackinaw City
mean lead
Morciano di Romagna
Morus mongolica
Moszczenica
mucousness
non-delivery
nonahedrons
Ocarina of Time
ocean data acquisition system
oiltight bulkhead
orangethorpe
orthotopic small intestine transplantation
pericontinental area
pile weave
polemist
policy
polyxylic
port block
prehypertrophic
pro-Zionist
production speed
project engineer scheduling technique
Pseudoracelopus
pur.
raise foreign funds
reconceptualise
refrigerator mom
relative byte address
rod bipoiars
rolled sheet iron
scapuloanterior
seal (contact) face
separable acf
sexduction
sightreaders
site model
stooker
tariff kilometerage
tayloria indica
tegminal
transperineal
Tridax
ultra-distance
urban-cowboy
weak signals
winter-annual cover crops
work-lines
wound rotor series resistor starting
zoster frontalis